Jacqttakd mechanism



T., KNIGHT, JAQQUARD MEQHANIM FOR l-,QQMS- Fl mi@ JULY .14.

Feb. 6, 1923 HTTQRNKS 9atented heb. 55, 1923.,

I l ranas?. narran starts raras-r ort-fitto f nLLwoOn fr. KNIGHT, or PHILADELPHIA, PENNSYLVANIA, AssIGNon To LIOHLPPILD MANUFACTURING COMPANY, 'A CORPORATION OF PENNSYLVANIA. f

JACQUARD MECHANISM FOR LOOMS. I

Application :tiled July 14, 1921. Serial No. 484,563..

cation, reference being had to the accom` panying drawing.

This invention relates to jacquard mechanism for looms and it consists of certain improvements therein as hereinafter .set

forth and illustrated in 'thev drawings forming a part hereof.

The invention aims to provide a novel and advantageous mechanism adapted to beep-- crated when desired to turn the pattern card cylinder backward, and, at the same time, to automatically throw out of action the devices for turning the cylinder forward to permit the backwardy turningthereof,

i ln the accompanying drawings, illustrating the invention I Y Figairev 1 is a sideview of sufficient of a jacquard machine to illustrate my invention.

Figure 2 is a transverse lsection through the pattern card cylinder, showing the needle receiving openings therein. t

Figure 3 is a sectional detail showing the devices for turning the pattern card cylinder. Y

Referring to the drawings, 2 designates .the frame of the machine and 3 the horizontal needles supported and guided in parts carried thereby and adapted to be actuated by the pattern cards for the selec-y tion of the vertical wires'which are operatively connected to the warp threadsto be raised and lowered by the jacquard machine, in accordance with the pattern dictated by the cards, in the usual well known manner.

The pattern cord cylinder 4 is journaled in suitable bearings in the side members 5 of a reciprocative framev 6 comprising the members 5, arms or brackets 7 lsecured thereto and extending outwardly and downwardly therefrom, a bar 'or shaft 8 connecting the lower ends of the arms or brackets 7 and horizontal, parallel shafts 9 extending from the members 5 and slidably fitted vto bearings l0 On the frame 2 of the machine. v

Each shaft 9 has a bracket llsecured thereto and provided with a cam slot l2 therein, and, Lextending into thecam slot 12 in each bracket 11l is a pin 13 projecting from a collar 14 xed'on a rod or shaft 15 which is tted to slide vertically in bearings 16 on the frame 2, and which carries4 frame of the mach1ne,

the usual lifter whereby, when the rods 15 are raised and lowered by the usual, well known, mechanism to raise and 'lower the lifter* frame,

the frame 6 carrying the cylinder 4 will be.

reciprocated horizontally.

The chain of pattern cards-.17' passes aroundthe cylinder 4 each end of which is provided withthe usual ratchetmember 18 adapted to be engaged by the'tooth 19 of a pawl arm 2O to turn the cylinder 4 a quarter revolution and present afresh card 17 to the needles 3 .each time the cylinder 4 is 2 and it rests normally upononev of the ratchet members 18. VAt the conclusion fof cylinder 4 it is rethecard 17 thereon in vertical position, byv

pawls 22 are yfittedmoved toward and from'the needles. The pawl arm 20 is pivoted, at'21, to the framek to slide vertically in. the 1bracketsv5, and v they are passed normally toward the ratchet members 18 by Springs23; and, Lwhen the cylinler 4 is turned, the -teeth of the ratchet members 18 raise the pawls 22v against 'the l action of thev springs 23.

The card cylinder 4', near the respective ends thereof,A is provided ywith teeth 24 which enter holes 25 in the end portions of the cards 17 and cause them tO turn with the cylinderv surfaces thereof.

Adjacent to one ofthe ratchet members pawl arm 36 having projecting 18 is a tooth 37 adapted tov engage the ratchet member to turn the card cylinder backward. The pawlarm 36 is carried by one arm 38 of a vlever 39 which is fulcrumed, at 40, von the reciprocative frame 6, and which is provided with a tooth 37 adapted to engage the ratchet. Thev upper end of the arm 36 is pivoted-tojthe lever 39, and the lower end `of the army 36 is connected by a spring 41 to a projection 42 on one of the arms or brackets 7 of the frame v6. The spring 41 draws the pawl arm 36 into enga-gement with the ratchet member 18,V and, when thev and to register with the flat ilio arlu'el or the lever is Alowered and raised, the paivl arm 3G will be reciprocatedto cause its tooth 37 to engage the teeth of the ratchet member 18 and turnthe card cylinder i baclnvard and thereby. reverse ,the direction or movement or' the chain of cards 17, when it is desired to move it backward for any purpose.

The lever arm isprovided with a depending rod 4.4 Which extends to a convenient .position to be operatedby hand to raise and lower the lever arm f'to move the chain or' cards backward.

The paivl arm 36 is arranged laterally adjacent tol the paWl arm 20 and itis provided with al projection 4:5 which extends beneatlrthe paivl armQO and is adapted to engage the same and raise or throw it ont of operative relation 'to the teeth oic the ratchet member lS'to permit the cylinderll to be turned backward When'the lever 89 is operated tov raise and lower the paw'l arm 36 'for-'that purpose.

it. Willibe understood that variations and changes in the details of construction, arrangement and location or' part-s 1would readilyV suggestthemselves to persons skilled in the art and fall Within the spirit and scope of my invention. l do not desire, therefore, to be limited or restricted to the exacty detailso't construction and arrangementy shown and described.

Having; thus described my invention, I claim and desire to .protect by Letters Patent of the United States: 1

l; ln a jacquard mechanism and in combination, trame, a reciproca't-ive frame thereon means to reciprocate the latter', avpatte-rn card cylinder' carried by the reciprocative frame and providediwith a ratchet member for turning' the same, means to turn the cylinder forward when its' carrying trame is reciprocated, means carried bythe reciprocative frame to turn the cylinder backward, and means to automatically throw the second named means outolaction when the third named means is operated;

2. Ina jacquard mechanism and in combination, a frame, a reciprocative iframe therefon, means to reciprocate the latter, a pattern card cylinder carried by the reciprocative trame and provided with a ratchet member for turning` the same, a paivl carried by the 'trame and adapted to engage said member to turn the cylinder forward when its carry-L ing frame is reciprocated, anda pawl device carried by the reciprocative trame and adaptedfto engage saidmember to turn the cylinder backward, said device beingprovided'with means to move said :payvl out` oi operative position. l

ln acquard mechanism and in combination, a frame, a reciprocative trame there` on means to reciprocate the latter, a pattern card cylinder carried bythe reciprocative frame and provided With a ratchet member fork turning the same, a-'pawvlfcarried by the frame and adapted to engage said member to turn thecylinder forward When its carrying'l tra-meis reciprocated, apawl to engage said member; and turn the cylinder backward, alever ulcrumed ont-he reciprocative frame and connected to the last namedpavvl to actu-ate thesame, andaprojection on the second named pawl tov engage the first namedpawl aindmoveA it out of opera-tive position when said lever-is operated to actuate the second named paxvl.I

nwitnesswhereof I have hereunto set my hand this 13th day ofJuly,1921.

nL-Livoon rr. Kaiser.v 

